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Shear Transfer at Engineered Wood Floors

Data File

As engineered wood products become increasingly popular in light-frame construction, challenges arise related to designing floor diaphragms and shear wall connections. This publication addresses critical load transfer requirements that arise in applications where floors function as diaphragms and walls serve as shear elements.

This publication is designed for: engineers, architects, designers, builders

This publication provides comprehensive technical guidance on shear transfer connections at engineered wood floors, including lateral load capacity data for various rim joist products, detailed connection methods, and practical design examples. The publication contains illustrated connection details of proven methods for transferring loads between floors and foundations and nail capacity tables for various materials and configurations.

Key sections include:

  • Capacity of APA engineered wood rim joists

  • Mixing engineered wood products and sawn lumber – preventing incompatibilities

  • Diaphragm perimeter nailing requirements and details

  • Shear transfer of diaphragm loads to foundation/wall framing below

  • Transfer of shear wall forces from walls above into foundation/wall framing below

  • Framing anchors as alternative connection methods

  • Design example with step-by-step calculations

Published by APA — The Engineered Wood Association.